| http://www.w3.org/ns/prov#value | - In one embodiment, the base unit may have the general structure: (R???)n-X-(R2)m wherein X comprises carbocyclic systems or C1-C10 alkanes, n is an integer of at least 1, m is an integer of at least 1; and wherein each of R1 independently represents ???(CH2)y???NR3???C(NR4)???NR5, ???(CH2)y???NR6R7, ???(CH2)y???NH???Y, ???(CH2)y???O-Z; where y is an integer of at least 1; where R3, R4, and R5 inde
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